[MacPorts] #61256: Multicore support for math/R

[MacPorts]

#61256: Multicore support for math/R
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  Reporter:  webbp        |      Owner:  kjellpk
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  R            |
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Comment (by i0ntempest):

 It's working for me:
 {{{
 * installing *source* package ‘data.table’ ...
 ** package ‘data.table’ successfully unpacked and MD5 sums checked
 ** using staged installation
 zlib 1.2.11 is available ok
 OpenMP supported
 ** libs
 /opt/local/bin/clang-mp-10 -fopenmp
 -I"/opt/local/Library/Frameworks/R.framework/Resources/include" -DNDEBUG
 -I/opt/local/include  -fopenmp -fPIC  -isysroot
 /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -g -O3 -Wall -pedantic
 -std=gnu99 -mtune=native -pipe -c assign.c -o assign.o
 In file included from assign.c:1:
 In file included from ./data.table.h:13:
 In file included from ./myomp.h:2:
 /opt/local/include/libomp/omp.h:53:9: warning: ISO C restricts enumerator
 values to range of 'int' (2147483648 is too large) [-Wpedantic]
         omp_sched_monotonic = 0x80000000
         ^                     ~~~~~~~~~~
 ...
 }}}
 My Makevar file is same as the one you have except I explicitly specified
 {{{/opt/local/bin/clang-mp-10}}} and {{{/opt/local/bin/clang++-mp-10}}}.
 I've added openmp in as a variant, do you wanna try my portfile?

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Ticket URL: <https://trac.macports.org/ticket/61256#comment:9>
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